Simultaneous Nadir Overpasses (SNOs) between GOES-17 and FY3D
TLE Epoch: 2022 4 18.  Predictions up to the next  14.0 days:

     Date     Time(GOES-17)   GOES-17 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 04/18/2022   11:05:07   (  -0.03,-137.19) (   0.38,-139.06)  213.02                80
 04/19/2022   10:44:03   (  -0.03,-137.19) (  -0.63,-134.61)  294.56                80
 04/20/2022   23:09:11   (   0.03,-137.18) (  -0.62,-140.02)  324.09                80
 04/21/2022   22:48:08   (   0.03,-137.18) (   0.39,-135.57)  183.06                80
 04/23/2022   11:13:06   (  -0.02,-137.18) (   0.86,-140.94)  430.43                80
 04/24/2022   10:52:03   (  -0.02,-137.17) (  -0.15,-136.50)   76.49                80
 04/26/2022   22:58:48   (   0.01,-137.15) (  -0.07,-137.46)   35.99                80
 04/27/2022   22:37:44   (   0.01,-137.14) (   0.95,-133.01)  470.88                80
 04/29/2022   11:02:43   (  -0.01,-137.13) (   0.24,-138.39)  143.17                80
 04/30/2022   10:41:39   (  -0.01,-137.12) (  -0.72,-133.93)  363.35                80
 05/01/2022   23:04:07   (   0.01,-137.10) (  -0.50,-139.35)  256.91                80